gruenfeld



5 SHEETS-SHEET l- Patented Jan. 17, 1922.

. GRUENFELD. Jn.

APPARATUS FR MAKING CONCRETE `POLES.

APPLICATION FILED NOV. 3.19l9.

J. I. GRUENFELD, JA. APPARATUS FOR MAKING CONCRETE PoLEs-l APPLICATIONFILED NOV. 3.1919.

Patented Jan.. 17 1922.

5 SHEETS-SHEET 2.

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1.1. GRUENFELDJR. APPARATUS FOR MAKING CONCRETE POLES.

APPLICATION FILED Nov.3. m9.

1,403,683, Patented Jan. 17, 1922.

5 SHEETS-SHEET 3- 1.1. GRUENFELD. IH.

APPARATUS FOR MAKING CONCRETE POLES.

APPLICATION FILED NOV. 3. I9I9.

A 1.1. GRUENFELD,JII.

APPARATUS FOR MAKING CONCRETE POLES. APPLICATION FILED Nov. 3. I9I9.

1,403,683. Patented Jan. 17, 1922.

5 SHEETS-SHEET 5.

UNITE llfltlga; i ilneeieetion of l2 tteie ppleetion iled November El,

" end @tete oit lllinois, lieve invented eeitoiin new enduselullnipioveniente in eppoi-etno loiT ll/,leliing oneiete llolee, oit`Wliieli tlie iollowing; ie :t lull, elem, :ind endet description.rl'lie invention ielotee to oppeiotuei'oi initiating eonei'ete poles.

One object oit tlie invention ie to pi'ovide menno foi elizii'gingg tlieinould. lies liei'etofoife been tlie pizietiee to tilt tlie mouldtodunip e elungge oli eonei'ete into tlie uppei end tlieieoi wliile itis tilted. iln objection to tliie piuetiee lies been tlnit tlio eoneietewee :not evenlyT distiiliuted longitudinally ot the mould.

@ne object of tlie pi'eeeiit invention ie to provide iinpiiovedeliei'ging animi-Little lijv which tlie conci-ete `will loe gieduellyeind uniloifinly delivei'ed into tlie inould vvliile it lelie-ling`tiltedto eileeten eveii dietiilinN tion longitudinally of the inould.

ilnetliei' objection to tlie appointee lieietoloie need was tliet theinould woe mounted eo that e pit Woe iii-ieeeeeiff,r loeloiv the pointon Wliioli tlie niould woe pivoted. linotliei" olijeet Aoiitlieinvention ie to provide en iinpioved elidigging` oppeiotue in tvliiolitlie inonld will loe tilted in eneli nien ei1 tliot no pit will beneeeesei'jv.

i'inotliei olojeet oif the invention is to pirovide ineeneliei"iilieiiiing tlie alignment oil tlie mould when it `line beeneliei'gied :ind ieetoi'ed to ite lioiiicontel "positiony eo that it eenlie 'lied 'n.ritliout diil'lenltj; into tlie oppone tue 'loi rotetiiiig'tlie mould to poeli tlie ooneiete.

il noi-,liet object of tlie invention ie to pio) vide en improvediotetelile niount'lioi the inouirl-enseAivliieli` will Couso tlie eliseond niould, when revolving tlie niould and iototingi ineelionienn tonieve evenly ond ivitlieuteliuttei'in., lleietoitoie,it lnie been tliopi'oetiee to jpillvide iolleie on Stationery alien to SupporttheinouldeoLil ond the present invention involves tlie in, oli e ngelstationoifv.. eii'euliii t `"with iollei'e .mounted on tlie ertoei'otutii l i ie pio vide ii L'ii-eveil ineene ioi eeeuiinii; the mould:ind i'otutino ineelioniein in the ense lltliei olijeete ot v einvention 'vvillnppeoi lioin rlilie eooeiiieetion.'`

lllie invention consiste in tl e eevei'ol novel appone tu mit.lllei'tenteil l'l, lll/29% lieetni'ee liei'einoltei' set ioitli endinoi'eliois-4 i tieuloi'ly delined liv eleiineet lieieof.

lntlie di'owino'e: ig; l ie o view, poitly ineeetien end p yitly inelevation oil the initlie conclusion pioved elim-ging oppoietue. i FigiEl ie si.

i'eoi elevzltion oi tlieelio ging appointee. Fin. il ie it plan el? e.petition-ol seid eppotue. lilou d ie o neet-ion teiten on line lit-4f ofl(1 l. lling. iis e deteil eide eleviition snowing* tlie end Stop 'foilthe mould while le lield in tlie eliei'gine' eppoiutne. (l is e pien oltlie elioi in@` epiieiotue eind oleo tlie ineelninieni "for fitin'gntlieinould end loi ioeeiviiig;l it eitei it line been ioteted to no 1li tlieeoneiete. filings. il end Gl ere details oil tlie odjuetolole boei-ingeused on tineke on wliieli tlie nionld ie Slidfiloly lield. i 6 ie odetail showing; one oli the liellflieoiinigs on vvllieli tlieinould ieeuppoited ond T'g. 'o'b ie o Seetion tlieieol. l Fig. i? ie elongitudinal Seetion ot tlie mould, petits being; eliown in elevetioinFig@ is e section tellen on line 8MS l" T'N i.. eige.

oleinpinfi1 tlie inould in tlie rotating minore.- tue. ign` il is enelevotion9 porte being eliown in section, ot tlie inei'lld-ieeeivingi'lling l2 is en end elevation ont e appointee. lfieeu ond lll; iii-edetails el ftlie end eloeine loi tlie inould While it ie "being tiltedond eliei'ged.

The invention ie illuetieted in connection ivitli enionld inode np oleemi-evlindiieel eeetione Wliieli eie eeeuiied togetliei by liolte 2l.ond oi" et leniitli eoii'eeponding to tile pole to loe :loiined ll7liiletlie inould is loeiiiojolieigedV it ie lield on zt Ceiling-e .T22Wliieli ie provided with ongle-nien tinello toi euppoiting; tlie inouldnil teed-eliute Zl'ie inounted et tlie with o. snout vizoi' dieeliei'gingeoneiete into tlie niould 20. il eeiieeheonveyor2G is mount ed in tlieeliute end ie euitelilv driven 'L lll) il li l l o fixedly secured tothe elevator 3l. The other end of the carriage 22 is mounted on rollers35 which are adapted to run on rails 3G.

The elevator to which the rear end of the carriage'22 and partssustained thereby is connected, may be raised and lowered by anysuitable hoisting device, such as a cable 37 which may be operated byany suitable means. Stops 38 are secured to the rails 23 lon-'thecarriage 22 to prevent downward :movement of the mould longitudinally ofthe carriage while the latter is being tilted. The

,lowerfront vend ot the mould 2O is provided with plate 40 having amould therein which is closedby a cap l-l which is provided with ylugs42 adapted to interlock with clips 43 to 'removably-secure the cap inthe plate d0 and close theiront end of the mould. rThis cap prevents theconcrete from falling through the lower end of the mould while itis-tiljted and eanbe readily removed while the mould Visbeing rotated topack the concrete therein, as hereinafter more fully set forth. Theflanges 2l"l on the mould are 7 adapted to' rest on bearing-balls la(Figs. 6L Vand 6b). Each ball is held in a socket 45 and on a plug 46which is adjustably sustained by -a screw 47. By adjusting these balls44,

vthe mould will be evenly supported so it can be easily moved.

'The operation of the charging apparatus willbe as `follows: A mould 20will bedeposited upon the carriage 22 by a suitable hoist, as wellunderstood in the art. The chute -24 will then be adjusted so that its--spout 25 will discharge concrete into the mould. A lcharge of concretewill be delivered into thehopper 34, the outlet oiwhich is provided'witha valve 34a by which the discharge from the hopper into the chute 2% maybe regulated. VThe screw-conveyor 2G will-be started andthe elevator 3lwill be gradually raised. As the elevator is raised, the carriage 22 andmould thereon will be gradually tilted and theV concrete will beygradually and Icumulatively delivered into l the mould. This results inevenly filling the mould. Alter the mould has been tilted approximatelyto ythe inclination shown by dotted linesfin Fig. jl, the mould willhave received the charge of concrete and the eley the carriage Yisrestored to its normal position, this aligning device will cause thecarriage to bring the mouldy into true position for entry into therotating mechanism. For the same purpose, a V -shaped block 52 issecured to the base of the tower 3?) and a recessed member 53 is securedto the elevator.I so that as the latter is lowered, the rear end ot thecarriage will also be truly aligned.

A drum 55, the axis ot which is aligned with the axis ot the mould heldon the ca 1'- riage 22, is located adjacent one end ot said carriage andadapted to receive the mould from the carriage. Drum 55 is scoured inannular trames 5G, each of which is provided with a series of lugs 57 inwhich are mounted rollers 5S. The latter are grooved and adapted totravel on circular tracks 5t). These tracks are each secured in astationary trame 60. Frames 5G are formed in sections for convenience inapplying them to the drum. Each track 59 is 'formed of semi-circularsections and each sect-ion comprises a tread-portion (5l and a liange G2bolted to the trame. The fianges of the sections are disposed onopposite sides of the frame GO so vthat they can be convenientlyreplaced without removing the frame 60. Guide and supporting rails G4-are secured to the sides ot the drum and the horizontal ilanges of theserails are provided with ball-bearings, such as are shown in Fig. 9 andin detail in 6 and 6b, so that the ilanges 2ll on the mould may beeasily moved longitudinally along these rails to bring the mould intoand out ot the drum. Shafts (3G are mounted in bearings G7 in the drumand the inner ends of these shafts are each provided with a cam 68adapted to clamp the Ilanges et the mould against the bearings and tohold the mould against longitudinal movement. .kn arm (39 is secured tothe outer end ot each cain-shait (SG. Rods 70 at the outer sides ot' thedrum are provided with adjustable stop-collars 7l which are adapted toengage the forked ends of the arm GS) to operate them to shift the cam(3S. Each rod 70 is adapted to be operated by a screw 73 which is heldin a lug iet iixed to the drum, and has a screw-threaded engagement witha socket 75 which is adjustably connected to one end of the rod. Byturnin the screws 7 3, rods 70 may be operated to release the cams 68 orto cause them to lock the mould in the drum. A gear 7 6 is fixed to thedrum and may he driven by any suitable nichanism, as well understood inthe art.

A cable 77 and a suitable power-operated winding mechanism 7S is guidedb v a pulley S() and connected to the Ytrout end o'l' the mould. as at79. From the drum 55, the mould will be pulled by the cable 77 ontostationary tracks 82. from which it will be removed in any suitablemanner. A cable S3 is adapted to be connected to the iear end et a mouldin the drum 55 and to the front end ot a mould in the charging`apparatus. so that the charged mould and the mould which civ has beenlinished in the drum 55 may be sirotated to cause the concrete to bepacked CII -flO

around the mould and to form a hollow pole, well understood in the art.`lVhile a mould is being rotated, the cap 4]. is removed.

The inventionthus exemplifies charging c evenly filled and in which nopit is necessary to receive any portion of the mould While tilted. Alsoone in Which the charging operation and packing operations of differentmoulds may be simultaneously performed. Also improved means for lockingthe mould in the druin.

The invention is not to be understood as :restricted to the details setforth, since these may be modified within the scope of the appendedclaims, Without departing from the spirit Vand scope of the invention.

Having thus described the invention, what I claim as new and desire tosecure by Iietters Patent, is:

l. In a pole-making machine, the combination of a carriage adapted tohold a mould, a guide for one end of the carriage, an elevator for theother end of the carriage and means for delivering concrete into` amould on the carriage.

2. In a pole-making' machine, the combination of a carriage adapted tohold a mould, a support at one end of the carriage, a track for saidsupport,y an elevator to which the other end of the carriage ispivotally connected, and means for delivering concrete `into the mould.

In a pole making machine, the combination of a tiltable carriage, amould, means for rigidly securing the mould on the carriage, mechanismfor gradually 'feeding concrete into one end of the mould, and mechanismfor hoisting said end of the mould to cause the concrete to graduallygravitate from the hoisted end toward the other end.

4f. In a pole making machine, the combination ofy a tiltable carriage,means for rigidly securing a mould on the carriage, a chute and conveyordisposed outside of and adjacent one end of the mould to deliverconcrete into said end, a vertically movable hopper, and mechanism forsimultaneously hoisting the hopper in a rectilinear path and tilting thecarriage.

5. In a. pole making machine, the combination of a tiltable carriage, achute and conveyor disposed outside of and adjacent one end of the mouldto deliver concrete into said end, a vertically movable hopper, aconnection between the hopper and the carriage comprising a pivot whichpermits relative movement of the hopper and the carriage, and mechanismfor hoisting the hopper, said pivotal connection serving to tilt thechute When the hopper is shifted.

(i. In a pole making machine, the combination of a carriage `providedWith alongi tudinally movable and pivotal support at one end, a mould,means for rigidly securing the mould on the carriage, mechanism forfeeding concrete into the other end of the mould, and mechanism forhoisting said latter end of the mould to cause the concrete to gravitatefrom the hoisted end toward the other end.`

7. In a pole-making machine, the combi@ and means for locking the mouldin the drum comprising cams.

10. In a pole-making machine, the combination of a drum, means forrevolving the drum, a mould consisting of a single shell, and means forlocking the mould in the drum comprising cams and ribs for operating thecams.

ll. In a pole-making machine, the combination of a drum, means forholding a mould in the drum, rollersfor revolubly supporting the drum,means for supporting the rollers on the drum and stationary tracks forthe rollers.

1Q. In a pole-making machine, the combination of a drum, means forholding a mould in the drum, rollers for revolubly supporting the drum,means for supporting the rollers on the drum, stationary circular tracksfor the rollers, said tracks being formed of sections each comprising atread and a flange, the iianges of the sections being disposed onopposite sides of the frame.

13. In a pole-making machine, the combination of a mould formed ofsections and l5. In a pole-making machine, the combination of a mould,rails for supporting the mould, adjustable ball-bearings in said rails,and means for clamping the mould on the rails. Y

16. In a pole-making machine, the combinationvof a-.charging apparatusforlilling a mould Vthrough one end thereof, a lnouldvrotatingapparatus, axially aligned with the mould held 1n the chargingapparatus and meansv for moving the mould axially from the chargingapparatus to the rotatingap- Y paratus.

17. In va pole-making machina the combinatio'njof a charging apparatusfor filling -a mould through one end thereof, rotating;`

mechanism for the mould, and a mouldrsupport, said rotating apparatusand sup- JULIUS J. GRUENFELD, Ju.

